Perhaps this is the wrong page, but I had an odd event the other morning with my win10 laptop.
I had left it on, plugged in, with a Brave window (on FR) and a google chrome window (on Duolingo) open overnight.
When I went back in the morning, there was an admin/F1boot page up with a “save changes/load defaults” popup. I hit load defaults and unthinkingly closed the window. I did this because where I work the IT department will often change things overnight.
I have not noticed any changes in how it works, nor an increase in processer operations or internet activity.
What could be the cause of that admin page popping up in the middle of the night?
No idea, but I would proceed with extreme caution until you get more info/symptoms, if any appear. It could be a random innocent glitch, or it could be something nefarious. Make a backup ASAP, but don't replace any old backups, because this new one might have badness.
They’re onto you!
Ask Sharyl Attkisson.
Do you have an unexplained van parked somewhere on your street?
The “save changes/load defaults” popup is often triggered by a failing CMOS battery. Another indicator is the system clock being off.
Depending on the age of the computer and the sophistication of its BIOS your computer can provide you with diagnostics that can tell you of an impending battery failure.
The only “software” changes that could trigger this warning (that I can think of) would be a BIOS firmware upgrade. Did you try restarting your computer again and (if so) did the pop-up reappear?